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English to English adjective
| 1 |
Lying on the exterior part; bordering; conterminous; as, a frontier town. |  | source: webster1913 noun
| 2 |
a wilderness at the edge of a settled area of a country | | Example: the individualism of the frontier in Andrew Jackson's day
source: wordnet30
| 3 |
an international boundary or the area (often fortified) immediately inside the boundary | | source: wordnet30
| 4 |
an undeveloped field of study; a topic inviting research and development | | Example: he worked at the frontier of brain science
source: wordnet30
| 5 |
That part of a country which fronts or faces another country or an unsettled region; the marches; the border, confine, or extreme part of a country, bordering on another country; the border of the settled and cultivated part of a country; as, the frontier of civilization. | | source: webster1913 verb
| 6 |
To constitute or form a frontier; to have a frontier; -- with on. | | source: webster1913
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